Home / 664,837.90-990,932.45-627,000.37

Finding the Fourth Proportional to 664,837.90, 990,932.45 and 627,000.37

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Solution

The fourth proportional to 664,837.90, 990,932.45 and 627,000.37 is: 934,536.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,837.90 : 990,932.45 = 627,000.37 : x
  2. Step 2: Convert to fraction form
    664,837.90/990,932.45 = 627,000.37/x
  3. Step 3: Cross multiply
    664,837.90x = 990,932.45 × 627,000.37
  4. Step 4: Simplify right side
    664,837.90x = 621,315,007,182.67
  5. Step 5: Solve for x
    x = 621,315,007,182.67/664,837.90
  6. Step 6: Final answer
    x = 934,536.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.